In what units is RF feed line loss usually expressed?
Ohms per 1,000 feet
Decibels per 1,000 feet
Ohms per 100 feet
Decibels per 100 feet✓الإجابة الصحيحة
الشرح
Loss accumulates multiplicatively along a line, which is why it is quoted logarithmically in decibels rather than in ohms, and 100 feet at a stated frequency is the standard reference length in cable data.